<div class="example-wrapper">
    <div style="margin-bottom: 5px">
        <div>Version on server: <span id="version-indicator">1</span></div>
        <button onclick="refreshCache(undefined)">Refresh Root Level</button>
        <button onclick="refreshCache(['Canada'])">Refresh ['Canada'] Group</button>
        <button onclick="refreshCache(['Canada', '2002'])">Refresh ['Canada', '2002'] Group</button>

        <label><input type="checkbox" id="purge" /> Purge</label>
    </div>
    <div id="myGrid"></div>
</div>
